55889371 has 2 divisors, whose sum is σ = 55889372. Its totient is φ = 55889370.

The previous prime is 55889347. The next prime is 55889377. The reversal of 55889371 is 17398855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55889371 - 2⁷ = 55889243 is a prime.

It is not a weakly prime, because it can be changed into another prime (55889377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27944685 + 27944686.

It is an arithmetic number, because the mean of its divisors is an integer number (27944686).

Almost surely, 2^55889371 is an apocalyptic number.

55889371 is a deficient number, since it is larger than the sum of its proper divisors (1).

55889371 is an equidigital number, since it uses as much as digits as its factorization.

55889371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 46.

The square root of 55889371 is about 7475.9194083404. The cubic root of 55889371 is about 382.3341351572.

The spelling of 55889371 in words is "fifty-five million, eight hundred eighty-nine thousand, three hundred seventy-one".